On Thu, Apr 07, 2005 at 01:03:26PM +0200, derek holzer wrote: > I would like to cut MP3s uploaded to a server into 2 minute sections, > fade in the first 30 seconds, and fade out the last 30 seconds. Then I > would like to be able to overlap the various sections so that they > crossfade into each other using the 30 second fades. I can see that > mpgtx will work fine for the cutting, but what about the fading and > mixing? Are there any command-line tools to manipulate the volume of > mp3s without converting to WAV first? The only way to change the volume of MP3 data without decoding/re-encoding is to change the scaling factor of each data frame. I think this only changes it in fairly coarse steps, which would explain why it's usually used over a whole file, not for fade-in and fade-out. I'd do it with Audacity, but if you want command line I'd be surprised if ecasound can't handle it. -- Anahata anahata@xxxxxxxxxxxxxx -+- http://www.treewind.co.uk Home: 01638 720444 Mob: 07976 263827
